S 865-226

 (34)
 Push the L CMD button on the mode control panel.

 S 745-162

 (35)
 Use the PREV PAGE key on the CDU to show page 5 of the INPUT MONITORING.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 22-22-00
 ALL  ú ú 01 Page 519 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 745-163
 (36) Make sure that bits 17 and 16 for the ARINC word "E/26/350/00" are "0".
 NOTE: (E/26/350/00, BIT 17) = SRM-L AUTOTRIM ENGAGE-CONT SIGNAL ->
____
 SRM-R INTERFACE FAIL

 (E/26/350/00, BIT 16) = SRM-L AUTOTRIM ENGAGE-ARM SIGNAL -> SRM-R INTERFACE FAIL
 S 865-227
 (37)
 Push the autopilot disconnect switch on the control wheel, two times, to disengage the autopilot and to cancel the aural/visual annunciations.

 S 865-228

 (38)
 Use the manual trim switches (captain's or first officer's) on the Pilots' Control Wheel to set the stabilizer between +1 degree (up arrow) and -1 degree (down arrow).

 S 865-229

 (39)
 Push the VS button on the mode control panel.

 S 865-230

 (40)
 Use the thumb-wheel switch on the mode control panel to set the vertical speed to +2000 feet/minute.

 S 865-231

 (41)
 Push the R CMD button on the mode control panel.

 S 745-169

 (42)
 Use the PREV PAGE key on the CDU to show page 1 of the INPUT MONITORING.

 S 745-170

 (43)
 Make sure that bits 17 and 16 for the ARINC word "E/53/350/00" are "0".

 NOTE: (E/53/350/00, BIT 17) = SRM-R AUTOTRIM ENGAGE-CONT SIGNAL->
____
 SRM-L INTERFACE FAIL

 (E/53/350/00, BIT 16) = SRM-R AUTOTRIM ENGAGE-ARM SIGNAL -> SRM-L INTERFACE FAIL
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 22-22-00
 ALL  ú ú 01 Page 520 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-171
 (44) Push the autopilot disconnect switch on the control wheel, two times, to disengage the autopilot and to cancel aural/visual annunciations.
 I. Airplane to Its Initial Condition
 S 865-174
 (1)  
Set the F/D switches (captain's and first officer's) on the MCP to the OFF position if it is not necessary.

 S 865-175

 (2)  
Set all the mode selector switches on the IRS control panel, P5, to the OFF position if it is not necessary (AMM 34-21-00/501).

 S 865-172

 (3)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).

 (4)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 865-173
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 22-22-00
 ALL  ú ú 01 Page 521 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 MACH/SPEED TRIM SYSTEM - DESCRIPTION AND OPERATION
__________________________________________________
 1.  General (Fig. 1)
_______
 A.  The Mach/Speed Trim mode of the stabilizer trim system provides incremental horizontal stabilizer positioning in response to changes in Mach number (Mc) and computed airspeed (Vc) and Mach number (Mc). The mode is engaged when the airplane is in the air and the manual and autotrim functions are not engaged.
 B.  This chapter only covers Mach/speed trim operation. For a general description of Automatic Stabilizer Trim System, refer to 22-22-00/001. For component details and trim system operation of the Horizontal Stabilizer Trim Control System, refer to 27-41-00/001.
 2.  Operation
_________
 A.  Functional Description
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 空調(diào) AUTO FLIGHT(195)